x = 2y
2y + 9y - 11 = 0
11y - 11 = 0
11y = 11
y = 1
x = 2
Ответ: пара чисел (2;1)
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x = 2y
2y + 9y - 11 = 0
11y - 11 = 0
11y = 11
y = 1
x = 2
Ответ: пара чисел (2;1)